Mayor of Kiev Vitaly Klitschko has said his country may have to “give up territory” to Russia as a “painful solution” to securing “temporary” peace and halting the ongoing armed conflict between Russia and Ukraine.

The United States has proposed a peace deal to Ukraine that acknowledges Russia's control of Crimea and de facto control of four eastern Ukrainian territories, while promising not to allow Ukraine to join NATO and to lift Russia sanctions.

Downgraded peace talks on Ukraine have resumed in London as Kiev rejects US President Donald Trump’s “final offer.”

The United States reportedly believes that Ukraine might agree to cede approximately 20% of its territory to Russian forces as a potential component of a peace agreement with Moscow.

Russian President Vladimir Putin signs a bill ratifying a strategic partnership with Iran.

Russia’s Ministry of Foreign Affairs says Ukraine violated the Easter ceasefire agreement using US-made weapons.

Russia censures Ukraine for committing more than a thousand ceasefire violations.